Why is the patient of acute nephritis swollen

Why is the patient of acute nephritis swollen

Acute nephritis patients mainly because of the reduced glomerular filtration, and renal tubular reabsorption function is still the basic normal, normal renal tubule was 99%, and the weight of water uptake of sodium, potassium, urea, uric acid, etc. There are different levels of heavy absorption, therefore cause water sodium retention.
In addition, systemic capillary permeability increases, plasma protein infiltration tissue clearance is also a reason.
In addition, some people think that the occurrence of edema in acute nephritis is mainly the result of the increase of capillary permeability and fluid extravasation.
Others believe that edema is associated with heart failure caused by high blood pressure.